[PATCH 04/10] tst-assert-c++.cc: Return EXIT_UNSUPPORTED for GCC 4.9 or older

[Sam James]

"H.J. Lu" <hjl.tools@gmail.com> writes:

> Since assert/tst-assert-c++.cc fails to compile with GCC 4.9:
>
> ./tst-assert-c++.cc: In function ‘constexpr int check_constexpr()’:
> ./tst-assert-c++.cc:30:1: error: body of constexpr function ‘constexpr int check_constexpr()’ not a return-statement
>  }
>  ^
>
> return EXIT_UNSUPPORTED for GCC 4.9 or older.
>
> Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
> ---
>  assert/tst-assert-c++.cc | 10 ++++++++++
>  1 file changed, 10 insertions(+)
>
> diff --git a/assert/tst-assert-c++.cc b/assert/tst-assert-c++.cc
> index 9d587a16fa..8f06ff8223 100644
> --- a/assert/tst-assert-c++.cc
> +++ b/assert/tst-assert-c++.cc
> @@ -21,6 +21,7 @@
>  #undef NDEBUG
>  #include <assert.h>
>  
> +#if __GNUC_PREREQ (5, 0)
>  /* The C++ standard requires that if the assert argument is a constant
>     subexpression, then the assert itself is one, too.  */
>  constexpr int
> @@ -77,5 +78,14 @@ do_test ()
>  
>    return 0;
>  }
> +#else
> +#include <support/test-driver.h>
> +
> +static int
> +do_test ()
> +{
> +  return EXIT_UNSUPPORTED;
> +}
> +#endif
>  
>  #include <support/test-driver.c>

Reviewed-by: Sam James <sam@gentoo.org>